400 series is not suitable for subsea or ocean, but it more used for surgical steel because of the hardening capability.

400 series does not contain nickel, and generally for stainless characteristics you are looking for combinations of chromium and nickel but with 400 series it is chromium that gives the corrosion resistance. Also, 300 series are not magnetic (a trade of austenitic steel).

What is it you are designing and the constraints? The other problem with 300 series SS is the fact that they require oxygen to work, that is to say they need oxygen for the surface oxide to protect the metal, without it the steel will corrode, so 300 series is susceptible to crevice corrosion.

For stainless steel informatin, you can try this site: http://www.ssina.com/index2.html

If you want, you can contact me at jason (at) jasedesign (dot) com

Thanks guys, interesting stuff !

Thanks for the chat invite Jason, but to chat to you about work......zzzzzzzz, I'd rather chat about what the weather is like down there and maybe modelling techniques :)
The original question was just out of curiosity.

Cheers

Danny, the invite was for whatever. Or catch me on NaP for modeling stuff.

Here is a 3d print of the connector using a Z-corp 650. This is straight from the machine and has not been sanded or dipped yet so the it's a little rough and the colors become brighter after dipping. The connector is about 7 inches tall, it's fun to have access to a machine for this stuff. Stuck my watch in their for scale.

Hi Grendel, thanks for posting the photo!

It is just so cool to see your model become materialized like this.

- Michael